Years after the mysterious death of her father, sixteen-year-old Josie Owens wants nothing more than to carry on his legacy as an engineer aboard November's Dawn. This colossal walking ark has traveled the bottom of the oceans carrying the last remnants of humanity after an all-consuming flood. But Josie's dreams drown when she discovers the secret her father died for: the ark was never meant to stay submerged.

This knowledge makes Josie, and those she loves, an instant target to those who would sacrifice anything to keep the status quo from changing and to those who want nothing more than to upend the firm hierarchy. At the same time, a glitch in the navigation system sends November’s Dawn directly toward a miles deep trench.

An enjoyable book with intriguing worldbuilding and several twists and surprising revelations in the narrative to keep things interesting. The storyline and characters feel a bit formulaic, but they work just fine nonetheless.
I'm looking forward to the sequel.

This book reminds me of the space station that the kids from the 100 lived on.
It definitely has potential to be amazing but needs some more work.

This sci-fi novel imagines a world destroyed by war and by tectonic activity which ultimately causes flooding on such a scale that entire cities lie on the ocean bed. November's Dawn, an ark designed to save what remains of humanity, has been crawling along the ocean bed thousands of fathoms deep for many years. Society aboard the ark has evolved into layers in which the privileged elite are living in relative ease on the upper decks whilst workers of various status are living in challenging conditions on the decks below. Our hero Josie is training to become an engineer when she receives a message from her father who was killed in an accident when she was a young child. The message suggests that there is a radical and risky alternative to roaming endlessly in the deep darkness of the ocean. Josie sets out on a quest to find answers.
The world building is really good ......I felt claustrophobic just reading about the endless deep darkness of the ocean. There are plenty of surprises in the storyline and Josie is a likeable character who has to decide who to trust in a society rife with corruption and power hungry villains. The ending suggests that a sequel is planned and I am intrigued to see how Josie's journey progresses.